Home / 22,515.42-33,765.03-7,720.38

Finding the Fourth Proportional to 22,515.42, 33,765.03 and 7,720.38

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Solution

The fourth proportional to 22,515.42, 33,765.03 and 7,720.38 is: 11,577.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,515.42 : 33,765.03 = 7,720.38 : x
  2. Step 2: Convert to fraction form
    22,515.42/33,765.03 = 7,720.38/x
  3. Step 3: Cross multiply
    22,515.42x = 33,765.03 × 7,720.38
  4. Step 4: Simplify right side
    22,515.42x = 260,678,862.31
  5. Step 5: Solve for x
    x = 260,678,862.31/22,515.42
  6. Step 6: Final answer
    x = 11,577.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.